Creating your Easy Marshmallow Swirl Fudge can be straightforward if you follow these simple steps:

1. Prepare a Baking Dish: Line an 8×8 inch square baking dish with parchment paper, allowing some to hang over the sides for easy removal later.

2. Melt Chocolate: In a medium saucepan over low heat, combine the chocolate chips and sweetened condensed milk. Stir continuously until fully melted and smooth.

3. Add Flavor: Once melted, remove from heat, and stir in the vanilla extract and a pinch of salt.

4. Mix-in Marshmallows: Gently fold in the mini marshmallows and nuts if you are using them. Aim for a swirled effect rather than mixing it in completely.

5. Pour into Dish: Pour the chocolate mixture into the lined baking dish. Spread it evenly with a spatula.

6. Set the Fudge: Allow the fudge to cool at room temperature for about 30 minutes, then transfer it to the refrigerator to set for at least 2 hours.

7. Cut into Pieces: Once fully set, remove the fudge using the parchment overhang and cut it into squares.

8. Serve or Store: Enjoy immediately, or store in an airtight container at room temperature.

Following these easy steps will guide you in creating this incredible fudge that’s perfect for sharing—or keeping all to yourself!